| Financial year end | 
              2007-03-31 | 
              2008-03-31 | 
              2009-03-31 | 
              2010-03-31 | 
              2011-03-31 | 
            
            
            | Income from legacies | 
              £66,286.00 | 
              £110.00 | 
              £11,621.00 | 
              £56,174.00 | 
              £0.00 | 
            
            
            | Income from endowments | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Voluntary income | 
              £296,476.00 | 
              £182,280.00 | 
              £232,203.00 | 
              £960,528.00 | 
              £511,665.00 | 
            
            
            | Activities generating funds | 
              £309,102.00 | 
              £373,705.00 | 
              £385,797.00 | 
              £365,809.00 | 
              £384,621.00 | 
            
            
            | Income from charitable activities | 
              £5,292,879.00 | 
              £5,479,521.00 | 
              £5,734,886.00 | 
              £5,514,371.00 | 
              £6,313,103.00 | 
            
            
            | Investment income | 
              £55,895.00 | 
              £75,747.00 | 
              £55,156.00 | 
              £7,501.00 | 
              £8,067.00 | 
            
            
            | Other income | 
              £113,805.00 | 
              £135,266.00 | 
              £55,914.00 | 
              £31,890.00 | 
              £49,742.00 | 
            
            
            | Total income | 
              £6,068,157.00 | 
              £6,246,519.00 | 
              £6,463,956.00 | 
              £6,880,099.00 | 
              £7,267,198.00 | 
            
            
            | Investment gains | 
              £10,563.00 | 
              £-32,636.00 | 
              £-48,162.00 | 
              £49,032.00 | 
              £5,756.00 | 
            
            
            | Gains from asset revaluations | 
              £3,842,879.00 | 
              £775,972.00 | 
              £-1,439,835.00 | 
              £3,135,542.00 | 
              £2,679,127.00 | 
            
            
            | Gains on pension fund | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Voluntary income costs | 
              £9,265.00 | 
              £9,673.00 | 
              £13,417.00 | 
              £13,659.00 | 
              £11,676.00 | 
            
            
            | Fundraising trading costs | 
              £304,430.00 | 
              £334,218.00 | 
              £346,059.00 | 
              £316,670.00 | 
              £335,387.00 | 
            
            
            | Investment management costs | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Grants to institutions | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Charitable activities costs | 
              £5,308,128.00 | 
              £5,975,610.00 | 
              £6,127,234.00 | 
              £6,449,010.00 | 
              £6,297,065.00 | 
            
            
            | Governance costs | 
              £61,823.00 | 
              £65,666.00 | 
              £60,728.00 | 
              £80,946.00 | 
              £82,079.00 | 
            
            
            | Other expenses | 
              £35,172.00 | 
              £40,230.00 | 
              £45,060.00 | 
              £45,660.00 | 
              £0.00 | 
            
            
            | Total expenses | 
              £5,718,818.00 | 
              £6,425,397.00 | 
              £6,592,498.00 | 
              £6,905,945.00 | 
              £6,726,207.00 | 
            
            
            | Support costs | 
              £238,211.00 | 
              £248,769.00 | 
              £315,161.00 | 
              £259,132.00 | 
              £319,087.00 | 
            
            
            | Depreciation | 
              £449,947.00 | 
              £758,068.00 | 
              £779,805.00 | 
              £814,907.00 | 
              £787,730.00 | 
            
            
            | Reserves | 
              £982,855.00 | 
              £1,102,832.00 | 
              £1,196,147.00 | 
              £659,168.00 | 
              £827,085.00 | 
            
            
            | Fixed assets at start of year | 
              £19,269,340.00 | 
              £23,268,063.00 | 
              £23,417,465.00 | 
              £21,842,389.00 | 
              £82,789,913.00 | 
            
            
            | Fixed assets at end of year | 
              £23,268,063.00 | 
              £23,417,465.00 | 
              £21,842,389.00 | 
              £19,552,541.00 | 
              £79,802,056.00 | 
            
            
            | Fixed investment assets at start of year | 
              £228,177.00 | 
              £214,747.00 | 
              £182,111.00 | 
              £133,950.00 | 
              £182,982.00 | 
            
            
            | Fixed investment assets at end of year | 
              £214,747.00 | 
              £182,111.00 | 
              £133,950.00 | 
              £182,982.00 | 
              £188,738.00 | 
            
            
            | Current investment assets | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Cash | 
              £1,384,685.00 | 
              £1,698,366.00 | 
              £1,611,868.00 | 
              £880,515.00 | 
              £1,428,950.00 | 
            
            
            | Total current assets | 
              £1,654,465.00 | 
              £2,071,486.00 | 
              £2,091,575.00 | 
              £1,325,231.00 | 
              £2,054,692.00 | 
            
            
            | Creditors within 1 year | 
              £138,455.00 | 
              £100,190.00 | 
              £114,489.00 | 
              £127,186.00 | 
              £85,790.00 | 
            
            
            | Long term creditors or provisions | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Pension assets | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Total assets | 
              £24,784,073.00 | 
              £25,388,761.00 | 
              £23,819,475.00 | 
              £20,750,586.00 | 
              £81,770,958.00 | 
            
            
            | Endowment funds | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Restricted funds | 
              £23,469,676.00 | 
              £23,885,384.00 | 
              £22,203,851.00 | 
              £19,425,092.00 | 
              £17,420,306.00 | 
            
            
            | Unrestricted funds | 
              £1,314,397.00 | 
              £1,503,377.00 | 
              £1,615,624.00 | 
              £1,325,494.00 | 
              £64,350,652.00 | 
            
            
            | Total funds | 
              £24,784,073.00 | 
              £25,388,761.00 | 
              £23,819,475.00 | 
              £20,750,586.00 | 
              £81,770,958.00 | 
            
            
            | Employees | 
              88 | 
              85 | 
              81 | 
              78 | 
              74 | 
            
            
            | Volunteers | 
              0 | 
              0 | 
               | 
               | 
               | 
            
            
            | Consolidated accounts | 
               | 
               | 
               | 
               | 
              true | 
            
            
            | Charity only accounts | 
              true | 
              true | 
              true | 
              true | 
               | 
            
            
            | Financial year start | 
              2006-04-01 | 
              2007-04-01 | 
              2008-04-01 | 
              2009-04-01 | 
              2010-04-01 |